JP3229963B2 - Trolley traveling, lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley traveling / elevating device capable of transporting materials such as reinforcing bars, excavated earth and sand, etc. from an upper layer to a lower layer or from a lower layer to an upper layer in construction work and the like, and traversing and transporting. Things.

[0002]

2. Description of the Related Art Heretofore, in this type of work, transport from a truck to an opening for carrying in and out of materials and the like, up and down of the opening are performed by an overhead crane, etc. I was

[0003]

As described above, according to the conventional transport method, a great deal of labor and transport time are required. Therefore, the emergence of a system for unloading, traversing, lifting and lowering, and a horizontal integrated transport system is desired. ing. Adopting such a unified transport system requires a trolley to travel, lift and lower, and possible lift rails. At this time, if the trolley is moved up and down by simply attaching the rail to the lift, the rail may be derailed from the trolley rail, the fall of the lift rail, and the straight up and down of the lift rail may not be possible.

[0004] The present invention has been proposed in view of such a point, and an object of the present invention is to provide a trolley for traveling and lifting a trolley for transporting materials, which is excellent in safety and rational.

[0005]

In order to achieve the above object, a trolley traveling and lifting device according to the present invention comprises a rail on which a trolley is suspended so as to be able to travel, and a lifting and lowering rope mounted on the rail. Frame, a trolley position detection sensor and a stopper opening / closing operation detection sensor mounted on the reinforcement frame, and a sensor disposed at the center of the reinforcement frame, and detecting the sensor when the trolley comes to the center position. A center stopper for stopping the traveling of the trolley in response to a signal, and located before and after a center portion of the reinforcing frame and disposed inside the hanging device, and the trolley travels outside the hanging device position beyond the hanging device position. The rail is configured to be unable to move up and down unless a signal indicating that the center stopper has been closed is issued. .

[0006]

Since the present invention is configured as described above,
A hoisting line is attached to a hanger provided on a reinforcing frame mounted on a rail on which the trolley is hung freely, and the trolley running rail and the reinforcing frame are moved up and down via the hoisting line. When the trolley comes to the center of the rail, the trolley position detecting device detects the trolley, and the center stopper mechanically stops the traveling of the trolley. In this case, the safety of the work is ensured by the construction in which the reinforcing frame is moved up and down only when the center stopper is operating, and cannot be moved up and down unless a signal indicating that the center stopper is closed is issued.

Further, during unloading and loading operations by the trolley, if the trolley tries to travel outside beyond the detection sensor due to some failure, the trolley position is detected by the detection sensor, and the detection signal is output. The side stopper is actuated to prevent the trolley from running to the outside, thereby preventing the reinforcing frame from tilting over the hanging member of the rail hoisting line as a fulcrum and falling off the rail.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Reference numeral 1 denotes a rail on which a trolley 2 is suspended so that it can run freely.
A reinforcing frame 3 is attached to the rail 1, and a pair of hanging rods 4 orthogonal to the rail 1 are provided before and after the reinforcing frame 3.
Are mounted on both ends of each of the hanging rods 4, respectively.
Are mounted, and the rail 1 is suspended at four points. The hanging tool 6 has a screw-type height adjusting device 7 so that the level of the rail 1 can be adjusted.

The reinforcing frame 3 is provided with a center stopper 8, a side stopper 9, a sensor 10 for detecting the position of the trolley and a sensor 10 for detecting the opening and closing of the stopper. In addition, as the sensor, a sensor for detecting the upper limit, excessive upper limit, deceleration, lower limit, lower limit and lower limit of the rail 1 to be moved up and down and safely moving up and down the rail, a center of the trolley on the trolley rail, a right limit, a left limit position. And a sensor for checking the opening and closing operation of the center stopper and the opening and closing of the right end stopper. A sensor for checking the opening and closing operation of the stopper is provided, and the right and left end stoppers are provided as necessary.

In the figure, reference numerals 11 and 12 are activated by a warning light and a buzzer, respectively, when the apparatus is in danger, to call attention to the worker. Since the illustrated embodiment is configured as described above, at a construction site, a reinforcing bar mounted on a truck (not shown) is loaded onto the trolley 2 by a crane, traverses to the opening, and passes through the opening. Then, it descends to the lower part, and is transported to the required position in the direction perpendicular to the traverse without unloading.

At this time, the movement of the trolley 2 to the center position is detected by the sensor 10 and the center stopper 8 is moved.
To stop the trolley 2 mechanically. The reinforcing frame 3 enables the ascending and descending work only when the center stopper 8 is operated, thereby ensuring safety. Also, when unloading on a truck or loading work on the ground, the trolley 2 is regulated so as not to go out of the hoisting rope 5, but the trolley 2 exceeds the sensor 10 due to some failure. When trying to run, the side stopper 9 is actuated by the sensor 10 that detects the position of the trolley 2 to restrict the trolley 2 from going outside, and the reinforcing frame 3 falls over with the lifting cable 5 as a fulcrum. The rails 1 are not derailed or fall down, and work safety is maintained.

In such a case, the warning light 11 and the buzzer 12 operate to draw the operator's attention.

[0013]

As described above, the trolley traveling / elevating apparatus according to the present invention mounts a reinforcing frame on a rail on which the trolley is suspended so that the trolley can travel, and mounts the trolley rail on the reinforcing frame and a trolley position detecting sensor. And a stopper opening / closing operation detection sensor, and a side stopper located inside the hanging device in parallel with the center stopper, and configured to stop upon receiving a detection signal of the sensor when the trolley comes to the center position, A side stopper is provided inside the hanging member in the reinforcing frame to limit the trolley from traveling beyond the hanging member position to the outside, and a trolley rail is provided unless a signal to close the center stopper is issued. A unified loading / traversing / elevating / horizontal transport system is constructed to prevent Together so that gender is secured, tighten if possible the automation of equipment, in which makes it possible to save significant labor saving and cost of construction.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a trolley running / elevating device according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail 2 Trolley 3 Reinforcement frame 4 Hanging rod 5 Lifting cable 6 Hanging tool 7 Screw type height adjustment device 8 Center stopper 9 Side stopper 10 Sensor 11 Warning light 12 Buzzer

Continuing from the front page Examiner Minoru Torii (56) References JP-A-5-8991 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66C ^7/ 00-15/06

Claims (1)

(57) [Claims] 1. A rail on which a trolley is suspended so as to run freely, a reinforcement frame attached to the rail and having a lifting device for a rail hoisting line, a trolley position detection detection sensor mounted on the reinforcement frame, and a stopper. An opening / closing operation detection sensor, a center stopper disposed at the center of the reinforcing frame, and receiving a detection signal of the sensor to stop traveling of the trolley when the trolley comes to the center position; It is located in front and rear, and is disposed inside the hanging device, and comprises a side stopper that restricts the trolley from traveling beyond the hanging device position and traveling outside, and the rail is a signal that the center stopper is completely closed. A traveling and elevating device for a trolley, wherein the trolley is configured to be unable to ascend or descend unless emitted.